Convert some ScopedProtect back into Rf_protect for CIs
Convert some ScopedProtect back into Rf_protect for CIs

We want to move to ScopedProtect eventually, but the conversion
needs to happen to the innermost uses first and eventually the
outermost uses. The affected lines are outermost uses.

JuKa87/OpenMx,mhunter1/OpenMx,JuKa87/OpenMx,jpritikin/OpenMx,jpritikin/OpenMx,JuKa87/OpenMx,JuKa87/OpenMx,JuKa87/OpenMx,JuKa87/OpenMx,jpritikin/OpenMx,mhunter1/OpenMx,jpritikin/OpenMx,mhunter1/OpenMx,mhunter1/OpenMx,jpritikin/OpenMx,mhunter1/OpenMx,jpritikin/OpenMx,mhunter1/OpenMx